Fast Focus - Electricity - pages 1 & 2

The flow of electricity requires a ______ circuit.

• open

• serial

• closed

• square

Below is a simple circuit. The lightbulb will not light up because –

• there is no switch in the circuit

• the wires do not form a closed circuit

• the wires are too long

• the lightbulb is broken

What supplies the electrical energy in a circuit?

• The wires

• The lightbulb

• The battery

• The switch

Which lightbulbs will remain lit if the wire is cut at the point where the scissors are located?

• Bulb 1 only

• Bulbs 1 and 2

• Bulbs 2 and 3

• None of the bulbs

Will the lightbulb light up in the circuit below?

• No, the circuit is not closed.

• Yes, the penny is a good insulator.

• Yes, the penny is a good conductor.

• No, the penny blocks the flow of electricity.

In a simple series circuit, the lightbulb goes out when the switch is opened because –

• the switch provides the electricity

• opening the switch breaks the closed circuit

• the battery no longer works

• the lightbulb breaks

Which of the following is a correct definition of electricity?

• The flow of neutrons through a wire

• The flow of atoms through a wire

• The flow of air through a wire

• The flow of electrons through a wire

Which bell or bells will ring in the circuit below?

• Bell 1 only

• Bells 1 and 2

• Bells 1 and 3

• All 3 bells